#3F0905#3F0905

#3F0905 is a very dark, moderate red. Relative luminance 0.013; OKLCH L 24.3% C 0.083 H 29.7°. Best body text is #FFFFFF at 16.77:1 contrast (WCAG AA passes).

Color values

HEX	#3F0905
RGB	rgb(63, 9, 5)
HSL	hsl(4, 85%, 13%)
HSV	hsv(4, 92%, 25%)
CMYK	cmyk(0%, 85.7%, 92.1%, 75.3%)
CIE-LAB	lab(11.02, 25.50, 15.09)
CIE-LCH	lch(11.02, 29.63, 30.61°)
OKLab	oklab(24.27% 0.0725 0.0413)
OKLCH	oklch(24.27% 0.083 29.7)
XYZ	xyz(2.1752, 1.2634, 0.2729)
Luminance	0.0126 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F0905 #053B3F

analogous

#3F051E #3F0905 #3F2605

triadic

#3F0905 #053F09 #09053F

tetradic

#3F0905 #1E3F05 #053B3F #26053F

square

#3F0905 #1E3F05 #053B3F #26053F

split-complementary

#3F0905 #053F26 #051E3F

monochromatic

#1C0402 #1C0402 #3F0905 #781109 #B0190E

Accessibility & contrast

On white

16.77

#3F0905 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#3F0905 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F0905

16.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F0905	#FFFFFF	#000000	##FFFFFF
##3F0905	1.00	16.77	1.25	16.77
#FFFFFF	16.77	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A1604

Deuteranopia (green-blind)

#272203

Tritanopia (blue-blind)

#460009

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #3f0905;
/* rgb */ color: rgb(63, 9, 5);
/* oklch */ color: oklch(24.3% 0.083 29.7);

Tailwind

colors: {
  custom: {
    50: '#794d49',
    500: '#3f0905',
    950: '#000000',
  },
}

SCSS

$custom: #3f0905;
$custom-light: #794d49;
$custom-dark: #000000;

JSON

{
  "hex": "#3f0905",
  "rgb": {
    "r": 63,
    "g": 9,
    "b": 5
  },
  "hsl": {
    "h": 4.138,
    "s": 85.294,
    "l": 13.333
  },
  "oklch": {
    "l": 0.24271,
    "c": 0.08341,
    "h": 29.7
  },
  "luminance": 0.01263
}

Semantic roles & 50–950 ramp

primary

#3F0905

secondary

#207980

accent

#EDFC2C

background

#F7F4F4

surface

#EEE7E6

border

#C9C3C2

text

#0A0200

muted

#7C7877

Preview Lab

Preview with #3F0905

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →